I can detach you can detach he can detach we can detach you can detach they can detach
V-ing form
I can be detaching you can be detaching he can be detaching we can be detaching you can be detaching they can be detaching
Perfect
I can have detached you can have detached he can have detached we can have detached you can have detached they can have detached
V-ing perfect
I can have been detaching you can have been detaching he can have been detaching we can have been detaching you can have been detaching they can have been detaching
Negation
Simple form
I cannot detach you cannot detach he cannot detach we cannot detach you cannot detach they cannot detach
V-ing form
I cannot be detaching you cannot be detaching he cannot be detaching we cannot be detaching you cannot be detaching they cannot be detaching
Perfect
I cannot have detached you cannot have detached he cannot have detached we cannot have detached you cannot have detached they cannot have detached
V-ing perfect
I cannot have been detaching you cannot have been detaching he cannot have been detaching we cannot have been detaching you cannot have been detaching they cannot have been detaching
Interrogative form
Simple form
can I detach? can you detach? can he detach? can we detach? can you detach? can they detach?
V-ing form
can I be detaching? can you be detaching? can he be detaching? can we be detaching? can you be detaching? can they be detaching?
Perfect
can I have detached? can you have detached? can he have detached? can we have detached? can you have detached? can they have detached?
V-ing perfect
can I have been detaching? can you have been detaching? can he have been detaching? can we have been detaching? can you have been detaching? can they have been detaching?
Interro-negative form
Simple form
can I not detach? can you not detach? can he not detach? can we not detach? can you not detach? can they not detach?
V-ing form
can I not be detaching? can you not be detaching? can he not be detaching? can we not be detaching? can you not be detaching? can they not be detaching?
Perfect
can I not have detached? can you not have detached? can he not have detached? can we not have detached? can you not have detached? can they not have detached?
V-ing perfect
can I not have been detaching? can you not have been detaching? can he not have been detaching? can we not have been detaching? can you not have been detaching? can they not have been detaching?